Techniques for subband based resource allocation for nr-u

ABSTRACT

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify a subband configuration for a plurality of subbands configured for the UE, the subband configuration including one or more guard bands for the plurality of subbands. The UE may identify one or more resource blocks, in which to transmit a physical uplink shared channel (PUSCH) communication, based at least in part on the subband configuration. The UE may transmit, to a base station (BS), the PUSCH communication in the one or more resource blocks. Numerous other aspects are provided.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No.16/805,332, filed on Feb. 28, 2020, entitled “TECHNIQUES FOR SUBBANDBASED RESOURCE ALLOCATION FOR NR-U”, which claims priority to U.S.Provisional Patent Application No. 62/860,430, filed on Jun. 12, 2019,entitled “SUBBAND BASED RESOURCE ALLOCATION FOR INTERLACED PUSCH,” whichare hereby expressly incorporated by reference herein.

FIELD OF THE DISCLOSURE

Aspects of the present disclosure generally relate to wirelesscommunication and to techniques for subband based resource allocationfor New Radio unlicensed.

BACKGROUND

Wireless communication systems are widely deployed to provide varioustelecommunication services such as telephony, video, data, messaging,and broadcasts. Typical wireless communication systems may employmultiple-access technologies capable of supporting communication withmultiple users by sharing available system resources (e.g., bandwidth,transmit power, and/or the like). Examples of such multiple-accesstechnologies include code division multiple access (CDMA) systems, timedivision multiple access (TDMA) systems, frequency-division multipleaccess (FDMA) systems, orthogonal frequency-division multiple access(OFDMA) systems, single-carrier frequency-division multiple access(SC-FDMA) systems, time division synchronous code division multipleaccess (TD-SCDMA) systems, and Long Term Evolution (LTE).LTE/LTE-Advanced is a set of enhancements to the Universal MobileTelecommunications System (UMTS) mobile standard promulgated by theThird Generation Partnership Project (3GPP).

A wireless communication network may include a number of base stations(BSs) that can support communication for a number of user equipment(UEs). A user equipment (UE) may communicate with a base station (BS)via the downlink and uplink. The downlink (or forward link) refers tothe communication link from the BS to the UE, and the uplink (or reverselink) refers to the communication link from the UE to the BS. As will bedescribed in more detail herein, a BS may be referred to as a Node B, agNB, an access point (AP), a radio head, a transmit receive point (TRP),a New Radio (NR) BS, a 5G Node B, and/or the like.

The above multiple access technologies have been adopted in varioustelecommunication standards to provide a common protocol that enablesdifferent user equipment to communicate on a municipal, national,regional, and even global level. New Radio (NR), which may also bereferred to as 5G, is a set of enhancements to the LTE mobile standardpromulgated by the Third Generation Partnership Project (3GPP). NR isdesigned to better support mobile broadband Internet access by improvingspectral efficiency, lowering costs, improving services, making use ofnew spectrum, and better integrating with other open standards usingorthogonal frequency division multiplexing (OFDM) with a cyclic prefix(CP) (CP-OFDM) on the downlink (DL), using CP-OFDM and/or SC-FDM (e.g.,also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) onthe uplink (UL), as well as supporting beamforming, multiple-inputmultiple-output (MIMO) antenna technology, and carrier aggregation.However, as the demand for mobile broadband access continues toincrease, there exists a need for further improvements in LTE and NRtechnologies. Preferably, these improvements should be applicable toother multiple access technologies and the telecommunication standardsthat employ these technologies.

SUMMARY

In some aspects, a method of wireless communication, performed by a userequipment (UE), may include identifying a subband configuration for aplurality of subbands configured for the UE, the subband configurationincluding one or more guard bands for the plurality of subband;identifying one or more resource blocks, in which to transmit a physicaluplink shared channel (PUSCH) communication, based at least in part onthe subband configuration; and transmitting, to a base station (BS), thePUSCH communication in the one or more resource blocks.

In some aspects, the subband configuration is a hard coded orsystem-wide subband configuration for all BSs included in a wirelessnetwork in which the UE and the BS are included. In some aspects,wherein the subband configuration is to be applied to each bandwidthpart configured by the BS in a cell associated with the BS. In someaspects, the subband configuration is configured for a cell of the BS;wherein the subband configuration configures all subbands and guardbands for a frequency band on which the BS operates in the cell; andwherein identifying the one or more resource blocks comprisesidentifying the one or more resource blocks based at least in part onthe UE being served by the cell.

In some aspects, the method further comprises receiving, from the BS, anindication of the subband configuration, wherein the indication of thesubband configuration is included in a cell configuration for the cell.In some aspects, the plurality of subbands are included in an unlicensedfrequency band. In some aspects, identifying the one or more resourceblocks comprises identifying, based at least in part on the subbandconfiguration, a first plurality of resource blocks included in theplurality of subbands; identifying, based at least in part on aninterlace of resource blocks configured for the UE, a second pluralityof resource blocks for interlaced PUSCH transmissions; and identifyingthe one or more resource blocks as a subset of the second plurality ofresource blocks that is included in the first plurality of resourceblocks.

In some aspects, the one or more resource blocks are included in atleast one of the plurality of subbands configured for the UE or the oneor more guard bands for the plurality of subbands. In some aspects, thesubband configuration is configured for a bandwidth part (BWP) of aplurality of BWPs associated with the BS; wherein the plurality ofsubbands and the one or more guard bands are included in the BWP; andwherein identifying the one or more resource blocks comprisesidentifying the one or more resource blocks based at least in part onthe BWP being assigned to the UE.

In some aspects, the method further comprises receiving, from the BS, anindication of the subband configuration, wherein the indication of thesubband configuration is included in a BWP configuration for the BWP. Insome aspects, the subband configuration indicates respective startingresource blocks and respective ending resource blocks for each of theone or more guard bands. In some aspects, the method further comprisesreceiving an indication of the subband configuration from the BS; andwherein identifying the one or more resource blocks comprisesidentifying the one or more resource blocks based at least in part onreceiving the indication of the subband configuration.

In some aspects, the subband configuration is a hard coded subbandconfiguration or a system-wide subband configuration; and whereinidentifying the one or more resource blocks comprises identifying theone or more resource blocks based at least in part on the hard codedsubband configuration or the system-wide subband configuration prior tobeing radio resource control (RRC) configured with a cell-based subbandconfiguration.

In some aspects, a UE for wireless communication may include memory andone or more processors operatively coupled to the memory. The memory andthe one or more processors may be configured to identify a subbandconfiguration for a plurality of subbands configured for the UE, thesubband configuration including one or more guard bands for theplurality of subbands; identify one or more resource blocks, in which totransmit a PUSCH communication, based at least in part on the subbandconfiguration; and transmit, to a BS, the PUSCH communication in the oneor more resource blocks.

In some aspects, the subband configuration is a hard coded orsystem-wide subband configuration for all BSs included in a wirelessnetwork in which the UE and the BS are included. In some aspects,wherein the subband configuration is to be applied to each bandwidthpart configured by the BS in a cell associated with the BS. In someaspects, the subband configuration is configured for a cell of the BS;wherein the subband configuration configures all subbands and guardbands for a frequency band on which the BS operates in the cell; andwherein identifying the one or more resource blocks comprisesidentifying the one or more resource blocks based at least in part onthe UE being served by the cell.

In some aspects, the one or more processors are further configured toreceive, from the BS, an indication of the subband configuration,wherein the indication of the subband configuration is included in acell configuration for the cell. In some aspects, the plurality ofsubbands are included in an unlicensed frequency band. In some aspects,identifying the one or more resource blocks comprises identifying, basedat least in part on the subband configuration, a first plurality ofresource blocks included in the plurality of subbands; identifying,based at least in part on an interlace of resource blocks configured forthe UE, a second plurality of resource blocks for interlaced PUSCHtransmissions; and identifying the one or more resource blocks as asubset of the second plurality of resource blocks that is included inthe first plurality of resource blocks.

In some aspects, the one or more resource blocks are included in atleast one of the plurality of subbands configured for the UE or the oneor more guard bands for the plurality of subbands. In some aspects, thesubband configuration is configured for a BWP of a plurality of BWPsassociated with the BS; wherein the plurality of subbands and the one ormore guard bands are included in the BWP; and wherein identifying theone or more resource blocks comprises identifying the one or moreresource blocks based at least in part on the BWP being assigned to theUE.

In some aspects, the one or more processors are further configured toreceive, from the BS, an indication of the subband configuration,wherein the indication of the subband configuration is included in a BWPconfiguration for the BWP. In some aspects, the subband configurationindicates respective starting resource blocks and respective endingresource blocks for each of the one or more guard bands. In someaspects, the one or more processors are further configured to receive anindication of the subband configuration from the BS; and whereinidentifying the one or more resource blocks comprises identifying theone or more resource blocks based at least in part on receiving theindication of the subband configuration.

In some aspects, the subband configuration is a hard coded subbandconfiguration or a system-wide subband configuration; and whereinidentifying the one or more resource blocks comprises identifying theone or more resource blocks based at least in part on the hard codedsubband configuration or the system-wide subband configuration prior tobeing RRC configured with a cell-based subband configuration.

In some aspects, a non-transitory computer-readable medium may store oneor more instructions for wireless communication. The one or moreinstructions, when executed by one or more processors of a UE, may causethe one or more processors to identify a subband configuration for aplurality of subbands configured for the UE, the subband configurationincluding one or more guard bands for the plurality of subbands;identify one or more resource blocks, in which to transmit a PUSCHcommunication, based at least in part on the subband configuration; andtransmit, to a BS, the PUSCH communication in the one or more resourceblocks.

In some aspects, the subband configuration is a hard coded orsystem-wide subband configuration for all BSs included in a wirelessnetwork in which the UE and the BS are included. In some aspects,wherein the subband configuration is to be applied to each bandwidthpart configured by the BS in a cell associated with the BS. In someaspects, the subband configuration is configured for a cell of the BS;wherein the subband configuration configures all subbands and guardbands for a frequency band on which the BS operates in the cell; andwherein identifying the one or more resource blocks comprisesidentifying the one or more resource blocks based at least in part onthe UE being served by the cell.

In some aspects, the one or more instructions, when executed by the oneor more processors, further cause the one or more processors to receive,from the BS, an indication of the subband configuration, wherein theindication of the subband configuration is included in a cellconfiguration for the cell. In some aspects, the plurality of subbandsare included in an unlicensed frequency band. In some aspects,identifying the one or more resource blocks comprises identifying, basedat least in part on the subband configuration, a first plurality ofresource blocks included in the plurality of subbands; identifying,based at least in part on an interlace of resource blocks configured forthe UE, a second plurality of resource blocks for interlaced PUSCHtransmissions; and identifying the one or more resource blocks as asubset of the second plurality of resource blocks that is included inthe first plurality of resource blocks.

In some aspects, the one or more resource blocks are included in atleast one of the plurality of subbands configured for the UE or the oneor more guard bands for the plurality of subbands. In some aspects, thesubband configuration is configured for a BWP of a plurality of BWPsassociated with the BS; wherein the plurality of subbands and the one ormore guard bands are included in the BWP; and wherein identifying theone or more resource blocks comprises identifying the one or moreresource blocks based at least in part on the BWP being assigned to theUE.

In some aspects, the one or more instructions, when executed by the oneor more processors, further cause the one or more processors to receive,from the BS, an indication of the subband configuration, wherein theindication of the subband configuration is included in a BWPconfiguration for the BWP. In some aspects, the subband configurationindicates respective starting resource blocks and respective endingresource blocks for each of the one or more guard bands. In someaspects, the one or more instructions, when executed by the one or moreprocessors, further cause the one or more processors to receive anindication of the subband configuration from the BS; and whereinidentifying the one or more resource blocks comprises identifying theone or more resource blocks based at least in part on receiving theindication of the subband configuration.

In some aspects, the subband configuration is a hard coded subbandconfiguration or a system-wide subband configuration; and whereinidentifying the one or more resource blocks comprises identifying theone or more resource blocks based at least in part on the hard codedsubband configuration or the system-wide subband configuration prior tobeing radio resource control (RRC) configured with a cell-based subbandconfiguration.

In some aspects, an apparatus for wireless communication may includemeans for identifying a subband configuration for a plurality ofsubbands configured for the apparatus, the subband configurationincluding one or more guard bands for the plurality of subbands; meansfor identifying one or more resource blocks, in which to transmit aPUSCH communication, based at least in part on the subbandconfiguration; and means for transmitting, to a BS, the PUSCHcommunication in the one or more resource blocks.

In some aspects, the subband configuration is a hard coded orsystem-wide subband configuration for all BSs included in a wirelessnetwork in which the apparatus and the BS are included. In some aspects,wherein the subband configuration is to be applied to each bandwidthpart configured by the BS in a cell associated with the BS. In someaspects, the subband configuration is configured for a cell of the BS;wherein the subband configuration configures all subbands and guardbands for a frequency band on which the BS operates in the cell; andwherein identifying the one or more resource blocks comprisesidentifying the one or more resource blocks based at least in part onthe apparatus being served by the cell.

In some aspects, the apparatus further comprises means for receiving,from the BS, an indication of the subband configuration, wherein theindication of the subband configuration is included in a cellconfiguration for the cell. In some aspects, the plurality of subbandsare included in an unlicensed frequency band. In some aspects,identifying the one or more resource blocks comprises identifying, basedat least in part on the subband configuration, a first plurality ofresource blocks included in the plurality of subbands; identifying,based at least in part on an interlace of resource blocks configured forthe apparatus, a second plurality of resource blocks for interlacedPUSCH transmissions; and identifying the one or more resource blocks asa subset of the second plurality of resource blocks that is included inthe first plurality of resource blocks.

In some aspects, the one or more resource blocks are included in atleast one of the plurality of subbands configured for the apparatus orthe one or more guard bands for the plurality of subbands. In someaspects, the subband configuration is configured for a BWP of aplurality of BWPs associated with the BS; wherein the plurality ofsubbands and the one or more guard bands are included in the BWP; andwherein identifying the one or more resource blocks comprisesidentifying the one or more resource blocks based at least in part onthe BWP being assigned to the apparatus.

In some aspects, the apparatus further comprises means for receiving,from the BS, an indication of the subband configuration, wherein theindication of the subband configuration is included in a BWPconfiguration for the BWP. In some aspects, the subband configurationindicates respective starting resource blocks and respective endingresource blocks for each of the one or more guard bands. In someaspects, the apparatus further comprises means for receiving anindication of the subband configuration from the BS; and whereinidentifying the one or more resource blocks comprises identifying theone or more resource blocks based at least in part on receiving theindication of the subband configuration.

In some aspects, the subband configuration is a hard coded subbandconfiguration or a system-wide subband configuration; and whereinidentifying the one or more resource blocks comprises identifying theone or more resource blocks based at least in part on the hard codedsubband configuration or the system-wide subband configuration prior tobeing RRC configured with a cell-based subband configuration.

In some aspects, a method of wireless communication, performed by a BS,may include configuring a subband configuration that includes one ormore guard bands for a plurality of subbands configured for a UE; andtransmitting, to the UE, an indication of the subband configuration.

In some aspects, configuring the subband configuration for the cellcomprises configuring the subband configuration for each bandwidth partconfigured by the BS in a cell associated with the BS. In some aspects,configuring the subband configuration comprises configuring the subbandconfiguration for a cell of the BS, wherein configuring the subbandconfiguration for the cell comprises configuring the subbandconfiguration for all subbands and guard bands for a frequency band onwhich the BS operates in the cell. In some aspects, transmitting theindication of the subband configuration comprises transmitting theindication of the subband configuration in a cell configuration for thecell.

In some aspects, the plurality of subbands are included in an unlicensedfrequency band. In some aspects, the method further comprises receiving,from the UE, a PUSCH communication in one or more resource blocks thatare based at least in part on the plurality of subbands configured forthe UE and the subband configuration. In some aspects, the one or moreresource blocks are included in at least one of the plurality ofsubbands configured for the UE or the one or more guard bands for theplurality of subbands. In some aspects, configuring the subbandconfiguration comprises configuring the subband configuration for a BWPof a plurality of BWPs associated with the BS.

In some aspects, transmitting the indication of the subbandconfiguration comprises transmitting the indication of the subbandconfiguration in a BWP configuration for the BWP. In some aspects, thesubband configuration indicates respective starting resource blocks andrespective ending resource blocks for each of the one or more guardbands. In some aspects, the subband configuration is included in aplurality of subband configurations that is configured for the UE,wherein the plurality of subband configurations comprise a combinationof at least one of a hard coded or system-wide subband configuration, acell-based subband configuration, a BWP-based subband configuration, ora subband combination-based subband configuration.

In some aspects, a BS for wireless communication may include memory andone or more processors operatively coupled to the memory. The memory andthe one or more processors may be configured to configure a subbandconfiguration that includes one or more guard bands for a plurality ofsubbands configured for a UE; and transmit, to the UE, an indication ofthe subband configuration.

In some aspects, configuring the subband configuration for the cellcomprises configuring the subband configuration for each bandwidth partconfigured by the BS in a cell associated with the BS. In some aspects,configuring the subband configuration comprises configuring the subbandconfiguration for a cell of the BS, wherein configuring the subbandconfiguration for the cell comprises configuring the subbandconfiguration for all subbands and guard bands for a frequency band onwhich the BS operates in the cell. In some aspects, transmitting theindication of the subband configuration comprises transmitting theindication of the subband configuration in a cell configuration for thecell.

In some aspects, the plurality of subbands are included in an unlicensedfrequency band. In some aspects, the one or more processors are furtherconfigured to receive, from the UE, a PUSCH communication in one or moreresource blocks that are based at least in part on the plurality ofsubbands configured for the UE and the subband configuration. In someaspects, the one or more resource blocks are included in at least one ofthe plurality of subbands configured for the UE or the one or more guardbands for the plurality of subbands. In some aspects, configuring thesubband configuration comprises configuring the subband configurationfor a BWP of a plurality of BWPs associated with the BS.

In some aspects, transmitting the indication of the subbandconfiguration comprises transmitting the indication of the subbandconfiguration in a BWP configuration for the BWP. In some aspects, thesubband configuration indicates respective starting resource blocks andrespective ending resource blocks for each of the one or more guardbands. In some aspects, the subband configuration is included in aplurality of subband configurations that is configured for the UE,wherein the plurality of subband configurations comprise a combinationof at least one of a hard coded or system-wide subband configuration, acell-based subband configuration, a BWP-based subband configuration, ora subband combination-based subband configuration.

In some aspects, a non-transitory computer-readable medium may store oneor more instructions for wireless communication. The one or moreinstructions, when executed by one or more processors of a BS, may causethe one or more processors to configure a subband configuration thatincludes one or more guard bands for a plurality of subbands configuredfor a UE; and transmit, to the UE, an indication of the subbandconfiguration.

In some aspects, configuring the subband configuration for the cellcomprises configuring the subband configuration for each bandwidth partconfigured by the BS in a cell associated with the BS. In some aspects,configuring the subband configuration comprises configuring the subbandconfiguration for a cell of the BS, wherein configuring the subbandconfiguration for the cell comprises configuring the subbandconfiguration for all subbands and guard bands for a frequency band onwhich the BS operates in the cell. In some aspects, transmitting theindication of the subband configuration comprises transmitting theindication of the subband configuration in a cell configuration for thecell.

In some aspects, the plurality of subbands are included in an unlicensedfrequency band. In some aspects, the one or more instructions, whenexecuted by the one or more processors, further cause the one or moreprocessors to receive, from the UE, a PUSCH communication in one or moreresource blocks that are based at least in part on the plurality ofsubbands configured for the UE and the subband configuration. In someaspects, the one or more resource blocks are included in at least one ofthe plurality of subbands configured for the UE or the one or more guardbands for the plurality of subbands. In some aspects, configuring thesubband configuration comprises configuring the subband configurationfor a BWP of a plurality of BWPs associated with the BS.

In some aspects, transmitting the indication of the subbandconfiguration comprises transmitting the indication of the subbandconfiguration in a BWP configuration for the BWP. In some aspects, thesubband configuration indicates respective starting resource blocks andrespective ending resource blocks for each of the one or more guardbands. In some aspects, the subband configuration is included in aplurality of subband configurations that is configured for the UE,wherein the plurality of subband configurations comprise a combinationof at least one of a hard coded or system-wide subband configuration, acell-based subband configuration, a BWP-based subband configuration, ora subband combination-based subband configuration.

In some aspects, an apparatus for wireless communication may includemeans for configuring a subband configuration that includes one or moreguard bands for a plurality of subbands configured for a UE; and meansfor transmitting, to the UE, an indication of the subband configuration.

In some aspects, configuring the subband configuration for the cellcomprises configuring the subband configuration for each bandwidth partconfigured by the BS in a cell associated with the BS. In some aspects,configuring the subband configuration comprises configuring the subbandconfiguration for a cell of the BS, wherein configuring the subbandconfiguration for the cell comprises configuring the subbandconfiguration for all subbands and guard bands for a frequency band onwhich the BS operates in the cell. In some aspects, transmitting theindication of the subband configuration comprises transmitting theindication of the subband configuration in a cell configuration for thecell.

In some aspects, the plurality of subbands are included in an unlicensedfrequency band. In some aspects, the apparatus further comprises meansfor receiving, from the UE, a PUSCH communication in one or moreresource blocks that are based at least in part on the plurality ofsubbands configured for the UE and the subband configuration. In someaspects, the one or more resource blocks are included in at least one ofthe plurality of subbands configured for the UE or the one or more guardbands for the plurality of subbands. In some aspects, configuring thesubband configuration comprises configuring the subband configurationfor a BWP of a plurality of BWPs associated with the BS.

In some aspects, transmitting the indication of the subbandconfiguration comprises transmitting the indication of the subbandconfiguration in a BWP configuration for the BWP. In some aspects, thesubband configuration indicates respective starting resource blocks andrespective ending resource blocks for each of the one or more guardbands. In some aspects, the subband configuration is included in aplurality of subband configurations that is configured for the UE,wherein the plurality of subband configurations comprise a combinationof at least one of a hard coded or system-wide subband configuration, acell-based subband configuration, a BWP-based subband configuration, ora subband combination-based subband configuration.

Aspects generally include a method, apparatus, system, computer programproduct, non-transitory computer-readable medium, user equipment, basestation, wireless communication device, and/or processing system assubstantially described herein with reference to and as illustrated bythe accompanying drawings and specification.

The foregoing has outlined rather broadly the features and technicaladvantages of examples according to the disclosure in order that thedetailed description that follows may be better understood. Additionalfeatures and advantages will be described hereinafter. The conceptionand specific examples disclosed may be readily utilized as a basis formodifying or designing other structures for carrying out the samepurposes of the present disclosure. Such equivalent constructions do notdepart from the scope of the appended claims. Characteristics of theconcepts disclosed herein, both their organization and method ofoperation, together with associated advantages will be better understoodfrom the following description when considered in connection with theaccompanying figures. Each of the figures is provided for the purposesof illustration and description, and not as a definition of the limitsof the claims.

BRIEF DESCRIPTION OF THE DRAWINGS

So that the above-recited features of the present disclosure can beunderstood in detail, a more particular description, briefly summarizedabove, may be had by reference to aspects, some of which are illustratedin the appended drawings. It is to be noted, however, that the appendeddrawings illustrate only certain typical aspects of this disclosure andare therefore not to be considered limiting of its scope, for thedescription may admit to other equally effective aspects. The samereference numbers in different drawings may identify the same or similarelements.

FIG. 1 is a block diagram conceptually illustrating an example of awireless communication network, in accordance with various aspects ofthe present disclosure.

FIG. 2 is a block diagram conceptually illustrating an example of a basestation in communication with a user equipment (UE) in a wirelesscommunication network, in accordance with various aspects of the presentdisclosure.

FIG. 3A is a block diagram conceptually illustrating an example of aframe structure in a wireless communication network, in accordance withvarious aspects of the present disclosure.

FIG. 3B is a block diagram conceptually illustrating an examplesynchronization communication hierarchy in a wireless communicationnetwork, in accordance with various aspects of the present disclosure.

FIG. 4 is a block diagram conceptually illustrating an example slotformat with a normal cyclic prefix, in accordance with various aspectsof the present disclosure.

FIGS. 5A-5E are diagrams illustrating one or more examples of subbandbased resource allocation for New Radio unlicensed, in accordance withvarious aspects of the present disclosure.

FIG. 6 is a diagram illustrating an example process performed, forexample, by a UE, in accordance with various aspects of the presentdisclosure.

FIG. 7 is a diagram illustrating an example process performed, forexample, by a base station (BS), in accordance with various aspects ofthe present disclosure.

FIGS. 8 and 9 are conceptual data flow diagrams illustrating data flowsbetween different modules/means/components in example apparatuses, inaccordance with various aspects of the present disclosure.

DETAILED DESCRIPTION

Various aspects of the disclosure are described more fully hereinafterwith reference to the accompanying drawings. This disclosure may,however, be embodied in many different forms and should not be construedas limited to any specific structure or function presented throughoutthis disclosure. Rather, these aspects are provided so that thisdisclosure will be thorough and complete, and will fully convey thescope of the disclosure to those skilled in the art. Based on theteachings herein one skilled in the art should appreciate that the scopeof the disclosure is intended to cover any aspect of the disclosuredisclosed herein, whether implemented independently of or combined withany other aspect of the disclosure. For example, an apparatus may beimplemented or a method may be practiced using any number of the aspectsset forth herein. In addition, the scope of the disclosure is intendedto cover such an apparatus or method which is practiced using otherstructure, functionality, or structure and functionality in addition toor other than the various aspects of the disclosure set forth herein. Itshould be understood that any aspect of the disclosure disclosed hereinmay be embodied by one or more elements of a claim.

Several aspects of telecommunication systems will now be presented withreference to various apparatuses and techniques. These apparatuses andtechniques will be described in the following detailed description andillustrated in the accompanying drawings by various blocks, modules,components, circuits, steps, processes, algorithms, and/or the like(collectively referred to as “elements”). These elements may beimplemented using hardware, software, or combinations thereof. Whethersuch elements are implemented as hardware or software depends upon theparticular application and design constraints imposed on the overallsystem.

It should be noted that while aspects may be described herein usingterminology commonly associated with 3G and/or 4G wireless technologies,aspects of the present disclosure can be applied in othergeneration-based communication systems, such as 5G and later, includingNR technologies.

FIG. 1 is a diagram illustrating a wireless network 100 in which aspectsof the present disclosure may be practiced. The wireless network 100 maybe an LTE network or some other wireless network, such as a 5G or NRnetwork. The wireless network 100 may include a number of BSs 110 (shownas BS 110 a, BS 110 b, BS 110 c, and BS 110 d) and other networkentities. A BS is an entity that communicates with user equipment (UEs)and may also be referred to as a base station, a NR BS, a Node B, a gNB,a 5G node B (NB), an access point, a transmit receive point (TRP),and/or the like. Each BS may provide communication coverage for aparticular geographic area. In 3GPP, the term “cell” can refer to acoverage area of a BS and/or a BS subsystem serving this coverage area,depending on the context in which the term is used.

A BS may provide communication coverage for a macro cell, a pico cell, afemto cell, and/or another type of cell. A macro cell may cover arelatively large geographic area (e.g., several kilometers in radius)and may allow unrestricted access by UEs with service subscription. Apico cell may cover a relatively small geographic area and may allowunrestricted access by UEs with service subscription. A femto cell maycover a relatively small geographic area (e.g., a home) and may allowrestricted access by UEs having association with the femto cell (e.g.,UEs in a closed subscriber group (CSG)). A BS for a macro cell may bereferred to as a macro BS. A BS for a pico cell may be referred to as apico BS. A BS for a femto cell may be referred to as a femto BS or ahome BS. In the example shown in FIG. 1, a BS 110 a may be a macro BSfor a macro cell 102 a, a BS 110 b may be a pico BS for a pico cell 102b, and a BS 110 c may be a femto BS for a femto cell 102 c. A BS maysupport one or multiple (e.g., three) cells. The terms “eNB”, “basestation”, “NR BS”, “gNB”, “TRP”, “AP”, “node B”, “5G NB”, and “cell” maybe used interchangeably herein.

In some aspects, a cell may not necessarily be stationary, and thegeographic area of the cell may move according to the location of amobile BS. In some aspects, the BSs may be interconnected to one anotherand/or to one or more other BSs or network nodes (not shown) in thewireless network 100 through various types of backhaul interfaces suchas a direct physical connection, a virtual network, and/or the likeusing any suitable transport network.

Wireless network 100 may also include relay stations. A relay station isan entity that can receive a transmission of data from an upstreamstation (e.g., a BS or a UE) and send a transmission of the data to adownstream station (e.g., a UE or a BS). A relay station may also be aUE that can relay transmissions for other UEs. In the example shown inFIG. 1, a relay station 110 d may communicate with macro BS 110 a and aUE 120 d in order to facilitate communication between BS 110 a and UE120 d. A relay station may also be referred to as a relay BS, a relaybase station, a relay, and/or the like.

Wireless network 100 may be a heterogeneous network that includes BSs ofdifferent types, e.g., macro BSs, pico BSs, femto BSs, relay BSs, and/orthe like. These different types of BSs may have different transmit powerlevels, different coverage areas, and different impacts on interferencein wireless network 100. For example, macro BSs may have a high transmitpower level (e.g., 5 to 40 Watts) whereas pico BSs, femto BSs, and relayBSs may have lower transmit power levels (e.g., 0.1 to 2 Watts).

A network controller 130 may couple to a set of BSs and may providecoordination and control for these BSs. Network controller 130 maycommunicate with the BSs via a backhaul. The BSs may also communicatewith one another, e.g., directly or indirectly via a wireless orwireline backhaul.

UEs 120 (e.g., 120 a, 120 b, 120 c) may be dispersed throughout wirelessnetwork 100, and each UE may be stationary or mobile. A UE may also bereferred to as an access terminal, a terminal, a mobile station, asubscriber unit, a station, and/or the like. A UE may be a cellularphone (e.g., a smart phone), a personal digital assistant (PDA), awireless modem, a wireless communication device, a handheld device, alaptop computer, a cordless phone, a wireless local loop (WLL) station,a tablet, a camera, a gaming device, a netbook, a smartbook, anultrabook, a medical device or equipment, biometric sensors/devices,wearable devices (smart watches, smart clothing, smart glasses, smartwrist bands, smart jewelry (e.g., smart ring, smart bracelet)), anentertainment device (e.g., a music or video device, or a satelliteradio), a vehicular component or sensor, smart meters/sensors,industrial manufacturing equipment, a global positioning system device,or any other suitable device that is configured to communicate via awireless or wired medium.

Some UEs may be considered machine-type communication (MTC) or evolvedor enhanced machine-type communication (eMTC) UEs. MTC and eMTC UEsinclude, for example, robots, drones, remote devices, sensors, meters,monitors, location tags, and/or the like, that may communicate with abase station, another device (e.g., remote device), or some otherentity. A wireless node may provide, for example, connectivity for or toa network (e.g., a wide area network such as Internet or a cellularnetwork) via a wired or wireless communication link. Some UEs may beconsidered Internet-of-Things (IoT) devices, and/or may be implementedas NB-IoT (narrowband internet of things) devices. Some UEs may beconsidered a Customer Premises Equipment (CPE). UE 120 may be includedinside a housing that houses components of UE 120, such as processorcomponents, memory components, and/or the like.

In general, any number of wireless networks may be deployed in a givengeographic area. Each wireless network may support a particular RAT andmay operate on one or more frequencies. A RAT may also be referred to asa radio technology, an air interface, and/or the like. A frequency mayalso be referred to as a carrier, a frequency channel, and/or the like.Each frequency may support a single RAT in a given geographic area inorder to avoid interference between wireless networks of different RATs.In some cases, NR or 5G RAT networks may be deployed.

In some aspects, two or more UEs 120 (e.g., shown as UE 120 a and UE 120e) may communicate directly using one or more sidelink channels (e.g.,without using a base station 110 as an intermediary to communicate withone another). For example, the UEs 120 may communicate usingpeer-to-peer (P2P) communications, device-to-device (D2D)communications, a vehicle-to-everything (V2X) protocol (e.g., which mayinclude a vehicle-to-vehicle (V2V) protocol, a vehicle-to-infrastructure(V2I) protocol, and/or the like), a mesh network, and/or the like. Inthis case, the UE 120 may perform scheduling operations, resourceselection operations, and/or other operations described elsewhere hereinas being performed by the base station 110.

As indicated above, FIG. 1 is provided as an example. Other examples maydiffer from what is described with regard to FIG. 1.

FIG. 2 shows a block diagram of a design 200 of base station 110 and UE120, which may be one of the base stations and one of the UEs in FIG. 1.Base station 110 may be equipped with T antennas 234 a through 234 t,and UE 120 may be equipped with R antennas 252 a through 252 r, where ingeneral T>1 and R>1.

At base station 110, a transmit processor 220 may receive data from adata source 212 for one or more UEs, select one or more modulation andcoding schemes (MCS) for each UE based at least in part on channelquality indicators (CQIs) received from the UE, process (e.g., encodeand modulate) the data for each UE based at least in part on the MCS(s)selected for the UE, and provide data symbols for all UEs. Transmitprocessor 220 may also process system information (e.g., for semi-staticresource partitioning information (SRPI) and/or the like) and controlinformation (e.g., CQI requests, grants, upper layer signaling, and/orthe like) and provide overhead symbols and control symbols. Transmitprocessor 220 may also generate reference symbols for reference signals(e.g., the cell-specific reference signal (CRS)) and synchronizationsignals (e.g., the primary synchronization signal (PSS) and secondarysynchronization signal (SSS)). A transmit (TX) multiple-inputmultiple-output (MIMO) processor 230 may perform spatial processing(e.g., precoding) on the data symbols, the control symbols, the overheadsymbols, and/or the reference symbols, if applicable, and may provide Toutput symbol streams to T modulators (MODs) 232 a through 232 t. Eachmodulator 232 may process a respective output symbol stream (e.g., forOFDM and/or the like) to obtain an output sample stream. Each modulator232 may further process (e.g., convert to analog, amplify, filter, andupconvert) the output sample stream to obtain a downlink signal. Tdownlink signals from modulators 232 a through 232 t may be transmittedvia T antennas 234 a through 234 t, respectively. According to variousaspects described in more detail below, the synchronization signals canbe generated with location encoding to convey additional information.

At UE 120, antennas 252 a through 252 r may receive the downlink signalsfrom base station 110 and/or other base stations and may providereceived signals to demodulators (DEMODs) 254 a through 254 r,respectively. Each demodulator 254 may condition (e.g., filter, amplify,downconvert, and digitize) a received signal to obtain input samples.Each demodulator 254 may further process the input samples (e.g., forOFDM and/or the like) to obtain received symbols. A MIMO detector 256may obtain received symbols from all R demodulators 254 a through 254 r,perform MIMO detection on the received symbols if applicable, andprovide detected symbols. A receive processor 258 may process (e.g.,demodulate and decode) the detected symbols, provide decoded data for UE120 to a data sink 260, and provide decoded control information andsystem information to a controller/processor 280. A channel processormay determine reference signal received power (RSRP), received signalstrength indicator (RSSI), reference signal received quality (RSRQ),channel quality indicator (CQI), and/or the like. In some aspects, oneor more components of UE 120 may be included in a housing.

On the uplink, at UE 120, a transmit processor 264 may receive andprocess data from a data source 262 and control information (e.g., forreports comprising RSRP, RSSI, RSRQ, CQI, and/or the like) fromcontroller/processor 280. Transmit processor 264 may also generatereference symbols for one or more reference signals. The symbols fromtransmit processor 264 may be precoded by a TX MIMO processor 266 ifapplicable, further processed by modulators 254 a through 254 r (e.g.,for DFT-s-OFDM, CP-OFDM, and/or the like), and transmitted to basestation 110. At base station 110, the uplink signals from UE 120 andother UEs may be received by antennas 234, processed by demodulators232, detected by a MIMO detector 236 if applicable, and furtherprocessed by a receive processor 238 to obtain decoded data and controlinformation sent by UE 120. Receive processor 238 may provide thedecoded data to a data sink 239 and the decoded control information tocontroller/processor 240. Base station 110 may include communicationunit 244 and communicate to network controller 130 via communicationunit 244. Network controller 130 may include communication unit 294,controller/processor 290, and memory 292.

Controller/processor 240 of base station 110, controller/processor 280of UE 120, and/or any other component(s) of FIG. 2 may perform one ormore techniques associated with subband based resource allocation forNew Radio unlicensed (NR-U), as described in more detail elsewhereherein. For example, controller/processor 240 of base station 110,controller/processor 280 of UE 120, and/or any other component(s) ofFIG. 2 may perform or direct operations of, for example, process 600 ofFIG. 6, process 700 of FIG. 7, and/or other processes as describedherein. Memories 242 and 282 may store data and program codes for basestation 110 and UE 120, respectively. A scheduler 246 may schedule UEsfor data transmission on the downlink and/or uplink.

In some aspects, UE 120 may include means for identifying a subbandconfiguration for a plurality of subbands configured for the UE 120, thesubband configuration including one or more guard bands for theplurality of subbands, means for identifying one or more resourceblocks, in which to transmit a PUSCH communication, based at least inpart on the subband configuration, means for transmitting, to a basestation 110, the PUSCH communication in the one or more resource blocks,and/or the like. In some aspects, such means may include one or morecomponents of UE 120 described in connection with FIG. 2.

In some aspects, base station 110 may include means for configuring asubband configuration that includes one or more guard bands for aplurality of subbands configured to a UE 120, means for transmitting, tothe UE 120, an indication of the subband configuration, and/or the like.In some aspects, such means may include one or more components of basestation 110 described in connection with FIG. 2.

As indicated above, FIG. 2 is provided as an example. Other examples maydiffer from what is described with regard to FIG. 2.

FIG. 3A shows an example frame structure 300 for frequency divisionduplexing (FDD) in a telecommunications system (e.g., NR). Thetransmission timeline for each of the downlink and uplink may bepartitioned into units of radio frames (sometimes referred to asframes). Each radio frame may have a predetermined duration (e.g., 10milliseconds (ms)) and may be partitioned into a set of Z (Z≥1)subframes (e.g., with indices of 0 through Z−1). Each subframe may havea predetermined duration (e.g., 1 ms) and may include a set of slots(e.g., 2^(m) slots per subframe are shown in FIG. 3A, where m is anumerology used for a transmission, such as 0, 1, 2, 3, 4, and/or thelike). Each slot may include a set of L symbol periods. For example,each slot may include fourteen symbol periods (e.g., as shown in FIG.3A), seven symbol periods, or another number of symbol periods. In acase where the subframe includes two slots (e.g., when m=1), thesubframe may include 2L symbol periods, where the 2L symbol periods ineach subframe may be assigned indices of 0 through 2L−1. In someaspects, a scheduling unit for the FDD may be frame-based,subframe-based, slot-based, symbol-based, and/or the like.

While some techniques are described herein in connection with frames,subframes, slots, and/or the like, these techniques may equally apply toother types of wireless communication structures, which may be referredto using terms other than “frame,” “subframe,” “slot,” and/or the likein 5G NR. In some aspects, a wireless communication structure may referto a periodic time-bounded communication unit defined by a wirelesscommunication standard and/or protocol. Additionally, or alternatively,different configurations of wireless communication structures than thoseshown in FIG. 3A may be used.

In certain telecommunications (e.g., NR), a base station may transmitsynchronization signals. For example, a base station may transmit aprimary synchronization signal (PSS), a secondary synchronization signal(SSS), and/or the like, on the downlink for each cell supported by thebase station. The PSS and SSS may be used by UEs for cell search andacquisition. For example, the PSS may be used by UEs to determine symboltiming, and the SSS may be used by UEs to determine a physical cellidentifier, associated with the base station, and frame timing. The basestation may also transmit a physical broadcast channel (PBCH). The PBCHmay carry some system information, such as system information thatsupports initial access by UEs.

In some aspects, the base station may transmit the PSS, the SSS, and/orthe PBCH in accordance with a synchronization communication hierarchy(e.g., a synchronization signal (SS) hierarchy) including multiplesynchronization communications (e.g., SS blocks), as described below inconnection with FIG. 3B.

FIG. 3B is a block diagram conceptually illustrating an example SShierarchy, which is an example of a synchronization communicationhierarchy. As shown in FIG. 3B, the SS hierarchy may include an SS burstset, which may include a plurality of SS bursts (identified as SS burst0 through SS burst B−1, where B is a maximum number of repetitions ofthe SS burst that may be transmitted by the base station). As furthershown, each SS burst may include one or more SS blocks (identified as SSblock 0 through SS block (b_(max_ss-1)), where b_(max_ss-1) is a maximumnumber of SS blocks that can be carried by an SS burst). In someaspects, different SS blocks may be beam-formed differently. An SS burstset may be periodically transmitted by a wireless node, such as every Xmilliseconds, as shown in FIG. 3B. In some aspects, an SS burst set mayhave a fixed or dynamic length, shown as Y milliseconds in FIG. 3B.

The SS burst set shown in FIG. 3B is an example of a synchronizationcommunication set, and other synchronization communication sets may beused in connection with the techniques described herein. Furthermore,the SS block shown in FIG. 3B is an example of a synchronizationcommunication, and other synchronization communications may be used inconnection with the techniques described herein.

In some aspects, an SS block includes resources that carry the PSS, theSSS, the PBCH, and/or other synchronization signals (e.g., a tertiarysynchronization signal (TSS)) and/or synchronization channels. In someaspects, multiple SS blocks are included in an SS burst, and the PSS,the SSS, and/or the PBCH may be the same across each SS block of the SSburst. In some aspects, a single SS block may be included in an SSburst. In some aspects, the SS block may be at least four symbol periodsin length, where each symbol carries one or more of the PSS (e.g.,occupying one symbol), the SSS (e.g., occupying one symbol), and/or thePBCH (e.g., occupying two symbols).

In some aspects, the symbols of an SS block are consecutive, as shown inFIG. 3B. In some aspects, the symbols of an SS block arenon-consecutive. Similarly, in some aspects, one or more SS blocks ofthe SS burst may be transmitted in consecutive radio resources (e.g.,consecutive symbol periods) during one or more slots. Additionally, oralternatively, one or more SS blocks of the SS burst may be transmittedin non-consecutive radio resources.

In some aspects, the SS bursts may have a burst period, whereby the SSblocks of the SS burst are transmitted by the base station according tothe burst period. In other words, the SS blocks may be repeated duringeach SS burst. In some aspects, the SS burst set may have a burst setperiodicity, whereby the SS bursts of the SS burst set are transmittedby the base station according to the fixed burst set periodicity. Inother words, the SS bursts may be repeated during each SS burst set.

The base station may transmit system information, such as systeminformation blocks (SIBs) on a physical downlink shared channel (PDSCH)in certain slots. The base station may transmit control information/dataon a physical downlink control channel (PDCCH) in C symbol periods of aslot, where B may be configurable for each slot. The base station maytransmit traffic data and/or other data on the PDSCH in the remainingsymbol periods of each slot.

As indicated above, FIGS. 3A and 3B are provided as examples. Otherexamples may differ from what is described with regard to FIGS. 3A and3B.

FIG. 4 shows an example slot format 410 with a normal cyclic prefix. Theavailable time frequency resources may be partitioned into resourceblocks. Each resource block may cover a set of subcarriers (e.g., 12subcarriers) in one slot and may include a number of resource elements.Each resource element may cover one subcarrier in one symbol period(e.g., in time) and may be used to send one modulation symbol, which maybe a real or complex value.

An interlace structure may be used for each of the downlink and uplinkfor FDD in certain telecommunications systems (e.g., NR). For example, Qinterlaces with indices of 0 through Q−1 may be defined, where Q may beequal to 4, 6, 8, 10, or some other value. Each interlace may includeslots that are spaced apart by Q frames. In particular, interlace q mayinclude slots q, q+Q, q+2Q, etc., where q E {0, . . . , Q−1}. As anotherexample, R interlaces may be defined, where R may be equal to 5, 10, orsome other value based at least in part on subcarrier spacing of slotformat 410 (e.g., 5 for 30 KHz subcarrier spacing, 10 for 15 KHzsubcarrier spacing, and/or the like). Each interlace may includeresource blocks, for PUSCH transmissions, that are spaced apart by Rresource blocks in the frequency domain. In particular, interlace r mayinclude resource blocks r, r+R, r+2R, etc., where r∈{0, . . . , R−1}. Asan example, for 5 interlaces of resource blocks, a first interlace mayinclude resource block 0, 5, 10, 15, and so on, a second interlace mayinclude resource block 1, 6, 11, 15, and so on, a third interlace mayinclude resource block 2, 7, 12, 16, and so on, and/or the like.

A UE may be located within the coverage of multiple BSs. One of theseBSs may be selected to serve the UE. The serving BS may be selectedbased at least in part on various criteria such as received signalstrength, received signal quality, path loss, and/or the like. Receivedsignal quality may be quantified by a signal-to-noise-and-interferenceratio (SNIR), or a reference signal received quality (RSRQ), or someother metric. The UE may operate in a dominant interference scenario inwhich the UE may observe high interference from one or more interferingBSs.

While aspects of the examples described herein may be associated with NRor 5G technologies, aspects of the present disclosure may be applicablewith other wireless communication systems. New Radio (NR) may refer toradios configured to operate according to a new air interface (e.g.,other than Orthogonal Frequency Divisional Multiple Access (OFDMA)-basedair interfaces) or fixed transport layer (e.g., other than InternetProtocol (IP)). In aspects, NR may utilize OFDM with a CP (hereinreferred to as cyclic prefix OFDM or CP-OFDM) and/or SC-FDM on theuplink, may utilize CP-OFDM on the downlink and include support forhalf-duplex operation using time division duplexing (TDD). In aspects,NR may, for example, utilize OFDM with a CP (herein referred to asCP-OFDM) and/or discrete Fourier transform spread orthogonalfrequency-division multiplexing (DFT-s-OFDM) on the uplink, may utilizeCP-OFDM on the downlink and include support for half-duplex operationusing TDD. NR may include Enhanced Mobile Broadband (eMBB) servicetargeting wide bandwidth (e.g., 80 megahertz (MHz) and beyond),millimeter wave (mmW) targeting high carrier frequency (e.g., 60gigahertz (GHz)), massive MTC (mMTC) targeting non-backward compatibleMTC techniques, and/or mission critical targeting ultra reliable lowlatency communications (URLLC) service.

In some aspects, a single component carrier bandwidth of 100 MHz may besupported. NR resource blocks may span 12 sub-carriers with asub-carrier bandwidth of 60 or 120 kilohertz (kHz) over a 0.1millisecond (ms) duration. Each radio frame may include 40 slots and mayhave a length of 10 ms. Consequently, each slot may have a length of0.25 ms. Each slot may indicate a link direction (e.g., DL or UL) fordata transmission and the link direction for each slot may bedynamically switched. Each slot may include DL/UL data as well as DL/ULcontrol data.

Beamforming may be supported and beam direction may be dynamicallyconfigured. MIMO transmissions with precoding may also be supported.MIMO configurations in the DL may support up to 8 transmit antennas withmulti-layer DL transmissions up to 8 streams and up to 2 streams per UE.Multi-layer transmissions with up to 2 streams per UE may be supported.Aggregation of multiple cells may be supported with up to 8 servingcells. Alternatively, NR may support a different air interface, otherthan an OFDM-based interface. NR networks may include entities such ascentral units or distributed units.

As indicated above, FIG. 4 is provided as an example. Other examples maydiffer from what is described with regard to FIG. 4.

As indicated above, various interlaces of resource blocks for PUSCHtransmissions may be defined for various types of wireless networkdeployments, such as a 5G/NR deployment. In some cases, the resourceblocks included in an interlace may be dispersed across a plurality offrequency domain resources (e.g., subbands, channels, and/or the like).In this case, a UE may identify the resource blocks, that may be usedfor transmitting a PUSCH communication to a BS, based at least in parton a frequency domain resource allocation assigned to the UE and aninterlace allocated to the UE. In other words, the UE may identify theresource blocks, included in the allocated interlace, that fall withinthe subbands or channels of the frequency domain resource allocationassigned to the UE.

In some cases, the subbands and associated guard bands that may beallocated to the UE may be included in a well-defined structure (e.g.,length and location), such as for a 5G/NR deployment in a licensedfrequency band. However, for an NR-U deployment, subband and guard bandlength (e.g., in resource blocks) and/or location may be based at leastin part on an unlicensed and/or shared frequency band used in thedeployment, may be based at least in part on a channelization of anothertype of wireless access method (e.g., Wi-Fi channelization), may bebased at least in part on interference requirements for the unlicensedfrequency band, may be dynamic and/or configurable by BSs in thedeployment, and/or the like. As a result, the UE may be unable todetermine the length and/or locations of subbands and/or guard bands fora frequency domain resource allocation assigned to the UE, which in turnmay result in the UE being unable to identify the resource blocks thatmay be used for transmitting physical uplink shared channel (PUSCH)communications.

Some aspects described herein provide techniques and apparatuses forsubband based resource allocation for NR-U. A UE may identify one ormore resource blocks, in which to transmit a PUSCH communication, basedat least in part on a subband configuration for a plurality of subbandsconfigured for the UE. The subband configuration may indicate and/orinclude one or more guard bands for the plurality of subbands allocatedto the UE, as well as other parameters for the plurality of subbandsand/or one or more guard bands. The subband configuration may be hardcoded or configured system-wide for all subbands across a particularfrequency band (e.g., an unlicensed frequency band in an NR-Udeployment) or all frequency bands included in a wireless network, maybe configured for all subbands on a cell-basis for each BS in thewireless network, may be configured per bandwidth part (BWP) associatedwith a BS, may be configured for different combinations of subbands,and/or the like. In this way, the UE is permitted to use the subbandconfiguration to identify the length and/or locations of subbands and/orguard bands for a frequency domain resource allocation assigned to theUE (e.g., in an unlicensed frequency band deployment), which in turnpermits the UE to identify the resource blocks that may be used fortransmitting PUSCH communications.

FIGS. 5A-5E are diagrams illustrating one or more examples 500 ofsubband based resource allocation for NR-U, in accordance with variousaspects of the present disclosure. As shown in FIGS. 5A-5E, examples 500may include communication between a BS (e.g., BS 110) and a UE (e.g., UE120). In some aspects, the BS and the UE may be included in a wirelessnetwork (e.g., wireless network 100).

In some aspects, the BS and the UE may be configured to communicate inthe wireless network using various frequency bands, such as one or morelicensed frequency bands, one or more unlicensed and/or shared frequencybands, and/or the like. Examples of unlicensed and/or shared frequencybands may include industrial, scientific, and medical (ISM) radiofrequency bands, such as 2.4 GHz and 5 GHz (which may typically be usedfor Wi-Fi communication), and/or the like. To permit cellularcommunication using an unlicensed and/or shared frequency band, theunlicensed and/or shared frequency band may be configured into subbands.The subbands may be guard banded to provide some protection againstradio frequency (RF) interference caused by transmissions in adjacentsubbands.

In some aspects, a subband configuration may be hard coded or configuredsystem-wide for an entire unlicensed and/or shared frequency band forall BSs in the wireless network, may be hard coded or configuredsystem-wide for all unlicensed and/or shared frequency bands that arepermitted to be operated in the wireless network, and/or the like. Asubband configuration may include, specify, and/or indicate one or moresubbands, one or more guard bands associated with each subband (e.g.,the locations of the one or more guard bands, the length or bandwidth ofthe one or more guard bands, and/or the like), and/or the like. Thesubband configuration may indicate the number of resource blocksincluded in each subband, may indicate the locations of the one or moresubbands (e.g., a starting resource block and ending resource block foreach subband), and/or the like. The subband configuration may indicatethe number of resource blocks included in each guard band, may indicatethe locations of the one or more guard bands (e.g., a starting resourceblock and ending resource block for each guard band), and/or the like.

A subband configuration may be hard coded or configured system-wide foran entire unlicensed and/or shared frequency band for all BSs in thewireless network such that the subband configuration configures allsubbands and guard bands for the unlicensed and/or shared frequencyband. In this case, all BSs in the wireless network may use the samesubband configuration for the unlicensed and/or shared frequency band.As another example, a subband configuration may be hard coded orconfigured system-wide for all unlicensed and/or shared frequency bandsfor all BSs in the wireless network such that the subband configurationconfigures all subbands and guard bands for all unlicensed and/or sharedfrequency bands in the wireless network. In this case, all BSs in thewireless network may use the same subband configuration for allunlicensed and/or shared frequency bands that are permitted to beoperated in the wireless network.

In some aspects, a subband configuration may be hard coded or configuredsystem-wide for an unlicensed and/or shared frequency band across theentire wireless network in cases where, for example, a channel structurethat is configured for other types of communication (e.g., Wi-Ficommunication) is reused for cellular communication on the unlicensedand/or shared frequency band. For example, if the BS and the UEcommunicate via 5 GHz, the BS and the UE (as well as other BSs and UEsin the wireless network) may reuse the channels (e.g., channelfrequencies and bandwidths) and guard bands, that are configured forWi-Fi communication, as the subbands and guard bands for cellularcommunication using the 5 GHz frequency band. Examples of channelbandwidths of an unlicensed and/or shared frequency band channel mayinclude 20 MHz, 80 Mhz, 100 Mhz, and/or the like.

As shown in FIG. 5A, and by reference number 502, in some aspects,additionally and/or alternatively to the subband configuration beinghard coded or configured system-wide for the entire wireless network,the BS may configure a cell-based subband configuration (e.g., a subbandconfiguration specific to a cell), a BWP-based subband configuration(e.g., a subband configuration specific to a BWP of a cell), a subbandcombination-based subband configuration (e.g., a subband configurationspecific to a combination of subbands of an unlicensed and/or sharedfrequency band), and/or the like. In this way, the BS (and other BSs inthe wireless network) is permitted to flexibly configure subbandconfigurations (e.g., the same subband configuration, different subbandconfigurations, and/or the like) for different cells of the BS, fordifferent BWPs of each cell, for different combinations of subbands ineach cell, and/or the like.

In some aspects, the BS may configure one or more combinations ofsubband configuration types for one or more UEs. For example, inaddition to a hard coded or system-wide subband configuration, the BSmay configure a cell-based subband configuration, a BWP-based subbandconfiguration, and/or a subband combination-based subband configurationfor the one or more UEs. In this case, the one or more UEs may use thehard coded or system-wide subband configuration prior to being RRCconfigured by the BS, and may use the cell-based subband configuration,a BWP-based subband configuration, and/or a subband combination-basedsubband configuration after being RRC configured. As another example,the BS may configure a cell-based subband configuration, which may beconfigured for the one or more UEs to use as a default or baselinesubband configuration (e.g., and thus, may be transmitted in a SIBand/or another type of system information), and then UEs may be RRCconfigured with UE-specific subband configurations (e.g., a BWP-basedsubband configuration, a subband combination-based subbandconfiguration, and/or the like).

FIG. 5B illustrates an example of a cell-based subband configuration.Other cell-based subband configurations may be implemented. As shown inFIG. 5B, the cell-based subband configuration may configure a pluralityof subbands (e.g., subbands B1-B5) and a plurality of associated guardbands (e.g., guard bands A1-A5) for an unlicensed and/or sharedfrequency band that is operated in a cell associated with the BS. Insome aspects, the BS may define the plurality of subbands and theplurality of guard bands (e.g., the respective starting resource blocksand the respective ending blocks for the plurality of subbands and theplurality of guard bands) starting from a reference frequency orphysical resource block of the unlicensed and/or shared frequency band.The reference frequency or physical resource block may be referred to asa common reference point or Point A.

In some aspects, the configuration of the plurality of subbands and theplurality of guard-bands in the subband configuration may be applied toall BWPs configured by the BS in the cell. For example, FIG. 5Billustrates various example BWPs configured for the BS (e.g., BWP 0-2).As shown in FIG. 5B, BWP 0 may include subband B2 and guard bands A2 andA3 from the cell-based subband configuration, BWP 1 may include subbandsB2 and B3 and guard bands A2-A4 from the cell-based subbandconfiguration, BWP 2 may include subbands B1-B5 and guard bands A1-A5from the cell-based subband configuration, and so on.

Moreover, as shown in FIG. 5B, the length and locations of the subbandsand the guard bands in each BWP may be carried over from the cell-basedsubband configuration. In other words, the length and location ofsubband B2 may be the same for BWP 0, BWP 1, and BWP2; the length andlocation of guard band A2 may be the same for BWP 0, BWP 1, and BWP2;and so on.

FIG. 5C illustrates an example of a BWP-based subband configuration.Other BWP-based subband configurations may be implemented. As shown inFIG. 5C, the BWP-based subband configuration may configure a pluralityof BWPs for a cell associated with the BS. Each BWP may be configuredwith one or more subbands and one or more associated guard bands for anunlicensed and/or shared frequency band that is operated in a cellassociated with the BS. In some aspects, a BWP-based subbandconfiguration may configure a single BWP. In this case, the BS mayconfigure respective BWP-based subband configurations for each BWPassociated with the BS. In some aspects, a BWP-based subbandconfiguration may configure one or more BWPs that are assigned to theUE. In this case, the BS may configure respective BWP-based subbandconfigurations for each UE that communicatively connects with the BS.

In some aspects, the configuration of subbands and guard-bands in thesubband configuration for each BWP may be the same configuration ordifferent configurations. In this case, one or more of subbands B1-B5 ina first BWP may be a different length and/or at a different location inan unlicensed and/or shared frequency band relative to one or more ofsubbands B1-B5 in a second BWP or may be the same length and/or locationas one or more of subbands B1-B5 in the second BWP. Similarly, one ormore of guard bands A1-A6 in a first BWP may be a different lengthand/or at a different location in an unlicensed and/or shared frequencyband relative to one or more of guard bands A1-A6 in a second BWP or maybe the same length and/or location as one or more of guard bands A1-A6in the second BWP.

For example, FIG. 5C illustrates various example BWPs configured for theBS (e.g., BWP 0-2). The BWPs may be configured in respective BWP-basedsubband configurations or the same BWP-based subband configuration. Asshown in FIG. 5C, BWP 0 may include a subband B1 and guard bands A1 andA2, BWP 1 may include subbands B1 and B1 and guard bands A1-A3, BWP 2may include subbands B1-B5 and guard bands A1-A6, and so on. Moreover,the locations of subband B1 and B2 may be different across BWPs 0-2, thelocations of guard bands A1-A3 may be different across BWPs 0-2, and soon.

FIG. 5D illustrates an example of a subband combination-based subbandconfiguration. Other subband combination-based subband configurationsmay be implemented. As shown in FIG. 5D, the subband combination-basedsubband configuration may be associated with a plurality of subbandcombinations associated with the BS. Each subband combination may beconfigured with one or more subbands and one or more associated guardbands for an unlicensed and/or shared frequency band that is operated bythe BS.

In some aspects, a subband combination-based subband configuration mayconfigure a single subband combination. In this case, the BS mayconfigure respective subband combination-based subband configurationsfor each subband combination associated with the BS. In some aspects, asubband combination-based subband configuration may configure one ormore subband combinations that are assigned to the UE. In this case, theBS may configure respective subband combination-based subbandconfigurations for each UE that communicatively connects with the BS. Insome aspects, a subband combination-based subband configuration for asubband combination may be the same or different for different BWPsassociated with the BS, may be the same or different for different cellsassociated with the BS, and/or the like.

In some aspects, the subbands included in a subband combination may beadjacent and/or contiguous subbands. In this case, the subbandcombination-based subband configuration may indicate and/or specify thestarting RB and ending RB for the contiguous set of subbands. In someaspects, the subbands included in a subband combination may benon-adjacent subbands. In this case, the subband combination-basedsubband configuration may indicate and/or specify respective startingRBs and respective ending RBs for each subband.

In some aspects, the configuration of subbands and guard-bands for eachsubband combination may be the same configuration or differentconfigurations. In this case, one or more of subbands B1-B5 in a firstsubband combination may be a different length and/or at a differentlocation in an unlicensed and/or shared frequency band relative to oneor more of subbands B1-B5 in a second subband combination or may be thesame length and/or location as one or more of subbands B1-B5 in thesecond subband combination. Similarly, one or more of guard bands A1-A6in a first subband combination may be a different length and/or at adifferent location in an unlicensed and/or shared frequency bandrelative to one or more of guard bands A1-A6 in a second subbandcombination or may be the same length and/or location as one or more ofguard bands A1-A6 in the second subband combination.

For example, FIG. 5D illustrates various example subband combinationsconfigured for a BWP of the BS (e.g., BWP 1). The subband combinationsmay be configured in respective subband combination-based subbandconfigurations or the same subband combination-based subbandconfiguration. As shown in FIG. 5D, each subband combination may includea subband B1 and guard bands A1 and A2. Moreover, as shown in FIG. 5D,the length and/or location of subband B1 and/or guard bands A1 and A2may be the same or different across the subband combinations.

As shown in FIG. 5E, and by reference number 504, the BS may transmit anindication of a resource allocation to the UE. The resource allocationmay indicate the time-domain resources (e.g., slots, symbols, and/or thelike) and/or the frequency-domain resources that are allocated to theUE. The frequency-domain resources may include a BWP, one or moresubbands included in the BWP, and/or the like, that are included in alicensed or unlicensed and/or shared frequency band. Additionally, theBS may transmit an indication of an interlace of resource blocksallocated to the UE.

Moreover, the BS may transmit an indication of a subband configurationfor the one or more subbands allocated to the UE. The BS may transmitthe indication of the subband configuration based at least in part onthe resource allocation, based at least in part on no hard coded orsystem-wide subband configuration being configured for the wirelessnetwork, and/or the like. The subband configuration may include,indicate, and/or specify the length, location, and/or other parametersof the one or more subbands allocated to the UE, the length, location,and/or other parameters of the one or more guard bands associated withthe subbands allocated to the UE, and/or the like. As indicated above,the subband configuration may be a cell-based subband configuration, aBWP-based subband configuration, a subband combination-based subbandconfiguration, and/or the like.

In some aspects, the BS may transmit the indication of the resourceallocation, the indication of the interlace, and/or the indication ofthe subband configuration to the UE in one or more communications. Theone or more communications may include a master information block (MIB),a SIB, a remaining minimum system information (RMSI) communication, another system information (OSI) communication, a downlink controlinformation (DCI) communication, a radio resource control (RRC)communication, a PBCH communication, a PDCCH communication, and/oranother type of downlink communication. In some aspects, if the subbandconfiguration is a cell-based subband configuration, the BS may transmitthe indication of the subband configuration in a cell configuration forthe cell. In some aspects, if the subband configuration is a BWP-basedsubband configuration, the BS may transmit the indication of the subbandconfiguration in a BWP configuration for the BWP.

In some aspects, the BS may configure a plurality of candidate subbandconfigurations in one or more first communications (e.g., a MIB, a SIB,an RMSI communication, an OSI communication, an RRC communication,and/or the like), and the BS may transmit the indication of the subbandconfiguration in one or more second communications (e.g., a mediumaccess control (MAC) control element (MAC-CE) communication, a DCIcommunication, and/or the like), in which the one or more secondcommunications index into the plurality of candidate subbandconfigurations indicatged in the one or more first communications.

As further shown in FIG. 5E, and by reference number 506, the UE mayidentify one or more resource blocks, in which to transmit a PUSCHcommunication to the BS. In some aspects, the UE may identify the one ormore resource blocks based at least in part on the resource allocation,the subband configuration, and/or the interlace. For example, the UE mayidentify a first plurality of resource blocks, included in the subbandsallocated to the UE, based at least in part on the resource allocationand the subband configuration, may identify a second plurality ofresource blocks for interlaced PUSCH transmissions based at least inpart on the interlace, and may identify a subset of resource blocksincluded in both the first plurality of resource blocks and the secondplurality of resource blocks as the one or more resource blocks that theUE may use to transmit the PUSCH communication. As further shown in FIG.5E, and by reference number 508, the UE may transmit, to the BS, thePUSCH communication in the one or more resource blocks that wereidentified as being permitted for use in transmitting the PUSCHcommunication to the BS.

In this way, the UE may identify one or more resource blocks, in whichto transmit a PUSCH communication, based at least in part on a subbandconfiguration for a plurality of subbands configured for the UE. Thesubband configuration may indicate and/or include one or more guardbands for the plurality of subbands allocated to the UE, as well asother parameters for the plurality of subbands and/or one or more guardbands. The subband configuration may be hard coded for all subbandsacross a particular frequency band (e.g., an unlicensed frequency bandin an NR-U deployment) or all frequency bands included in a wirelessnetwork, may be configured for all subbands on a cell-basis for each BSin the wireless network, may be configured per BWP associated with theBS, may be configured for different combinations of subbands, and/or thelike. In this way, the UE is permitted to use the subband configurationto identify the length and/or locations of subbands and/or guard bandsfor a frequency domain resource allocation assigned to the UE (e.g., inan unlicensed frequency band deployment), which in turn permits the UEto identify the resource blocks that may be used for transmitting PUSCHcommunications.

As indicated above, FIGS. 5A-5E are provided as one or more examples.Other examples may differ from what is described with respect to FIGS.5A-5E.

FIG. 6 is a diagram illustrating an example process 600 performed, forexample, by a UE, in accordance with various aspects of the presentdisclosure. Example process 600 is an example where a UE (e.g., UE 120)performs operations associated with subband based resource allocationfor NR-U.

As shown in FIG. 6, in some aspects, process 600 may include identifyinga subband configuration for a plurality of subbands configured for theUE, the subband configuration including one or more guard bands for theplurality of subbands (block 610). For example, the UE (e.g., usingreceive processor 258, transmit processor 264, controller/processor 280,memory 282, and/or the like) may identify a subband configuration for aplurality of subbands configured for the UE, as described above. In someaspects, the subband configuration including one or more guard bands forthe plurality of subbands.

As shown in FIG. 6, in some aspects, process 600 may include identifyingone or more resource blocks, in which to transmit a PUSCH communication,based at least in part on the subband configuration (block 620). Forexample, the UE (e.g., using receive processor 258, transmit processor264, controller/processor 280, memory 282, and/or the like) may identifyone or more resource blocks, in which to transmit a PUSCH communication,based at least in part on the subband configuration, as described above.

As further shown in FIG. 6, in some aspects, process 600 may includetransmitting, to a BS, the PUSCH communication in the one or moreresource blocks (block 630). For example, the UE (e.g., using receiveprocessor 258, transmit processor 264, controller/processor 280, memory282, and/or the like) may transmit, to a BS, the PUSCH communication inthe one or more resource blocks, as described above.

Process 600 may include additional aspects, such as any single aspect orany combination of aspects described below and/or in connection with oneor more other processes described elsewhere herein.

In a first aspect, the plurality of subbands are included in anunlicensed frequency band. In a second aspect, alone or in combinationwith the first aspect, identifying the one or more resource blockscomprises identifying, based at least in part on the subbandconfiguration, a first plurality of resource blocks included in theplurality of subbands; identifying, based at least in part on aninterlace of resource blocks configured for the UE, a second pluralityof resource blocks for interlaced PUSCH transmissions; and identifyingthe one or more resource blocks as a subset of the second plurality ofresource blocks that is included in the first plurality of resourceblocks.

In a third aspect, alone or in combination with one or more of the firstand second aspects, the one or more resource blocks are included in atleast one of the plurality of subbands configured for the UE or the oneor more guard bands for the plurality of subbands. In a fourth aspect,alone or in combination with one or more of the first through thirdaspects, the subband configuration is configured for all BSs included ina wireless network in which the UE and the BS are included, the subbandconfiguration configures all subbands and guard bands for all frequencybands that are operated in the wireless network, and identifying the oneor more resource blocks comprises identifying the one or more resourceblocks based at least in part on the subband configuration beingconfigured for all BSs included in the wireless network and based atleast in part on the subband configuration configuring all subbands andguard bands for all frequency bands that are operated in the wirelessnetwork.

In a fifth aspect, alone or in combination with one or more of the firstthrough fourth aspects, the subband configuration is configured for acell of the BS, the subband configuration configures all subbands andguard bands for a frequency band on which the BS operates in the cell,and identifying the one or more resource blocks comprises identifyingthe one or more resource blocks based at least in part on the UE beingserved by the cell. In a sixth aspect, alone or in combination with oneor more of the first through fifth aspects, the subband configuration isto be applied to each bandwidth part configured by the BS in the cell.

In a seventh aspect, alone or in combination with one or more of thefirst through sixth aspects, the plurality of subbands and the one ormore guard bands are included in a bandwidth part, of the frequencyband, assigned to the UE, and a resource block, of the one or moreresource blocks, is included in a guard band, of the one or more guardbands, between two subbands of the plurality of subbands. In an eighthaspect, alone or in combination with one or more of the first throughseventh aspects, process 600 further comprises receiving, from the BS,an indication of the subband configuration, the indication of thesubband configuration being included in a cell configuration for thecell.

In a ninth aspect, alone or in combination with one or more of the firstthrough eighth aspects, the subband configuration is configured for aBWP of a plurality of BWPs associated with the BS, the plurality ofsubbands and the one or more guard bands are included in the BWP, andidentifying the one or more resource blocks comprises identifying theone or more resource blocks based at least in part on the BWP beingassigned to the UE. In a tenth aspect, alone or in combination with oneor more of the first through ninth aspects, process 600 furthercomprises receiving, from the BS, an indication of the subbandconfiguration, the indication of the subband configuration beingincluded in a BWP configuration for the BWP.

In an eleventh aspect, alone or in combination with one or more of thefirst through tenth aspects, the subband configuration indicatesrespective lengths and respective locations, in the frequency domain,for the plurality of subbands and the one or more guard bands, anothersubband configuration, configured for another BWP of the plurality ofBWPs associated with the BS, indicates at least one of a first length ofa subband, of the plurality of subbands, that is different from a secondlength of the subband indicated in the subband configuration, a firstlocation of the subband that is different from a second location of thesubband indicated in the subband configuration, a first length of aguard band, of the one or more guard bands, that is different from asecond length of the guard band indicated in the subband configuration,or a first location of the guard band that is different from a secondlocation of the guard band indicated in the subband configuration.

In a twelfth aspect, alone or in combination with one or more of thefirst through eleventh aspects, the subband configuration is specific toa particular combination of the one or more subbands. In a thirteenthaspect, alone or in combination with one or more of the first throughtwelfth aspects, process 600 further comprises receiving an indicationof the subband configuration from the BS, and identifying the one ormore resource blocks comprises identifying the one or more resourceblocks based at least in part on receiving the indication of the subbandconfiguration. In a fourteenth aspect, alone or in combination with oneor more of the first through thirteenth aspects, receiving theindication of the subband configuration comprises receiving theindication of the subband configuration in at least one of a MIB, a SIB,an RMSI communication, an OSI communication, a DCI communication, or anRRC communication.

In a fifteenth aspect, alone or in combination with one or more of thefirst through fourteenth aspects, the subband configuration is includedin a plurality of subband configurations that is configured for the UE,and the plurality of subband configurations comprise a combination of atleast one of a hard coded or system-wide subband configuration, acell-based subband configuration, a BWP-based subband configuration, ora subband combination-based subband configuration.

In a sixteenth aspect, alone or in combination with one or more of thefirst through fifteenth aspects, the subband configuration is a hardcoded or system-wide subband configuration for all BSs included in awireless network in which the UE and the BS are included. In aseventeenth aspect, alone or in combination with one or more of thefirst through sixteenth aspects, the subband configuration is to beapplied to each bandwidth part configured by the BS in a cell associatedwith the BS.

In an eighteenth aspect, alone or in combination with one or more of thefirst through seventeenth aspects, the subband configuration indicatesrespective starting resource blocks and respective ending resourceblocks for each of the one or more guard bands. In a nineteenth aspect,alone or in combination with one or more of the first through eighteenthaspects, the subband configuration is a hard coded subband configurationor a system-wide subband configuration, and identifying the one or moreresource blocks comprises identifying the one or more resource blocksbased at least in part on the hard coded subband configuration or thesystem-wide subband configuration prior to being radio resource control(RRC) configured with a cell-based subband configuration.

Although FIG. 6 shows example blocks of process 600, in some aspects,process 600 may include additional blocks, fewer blocks, differentblocks, or differently arranged blocks than those depicted in FIG. 6.Additionally, or alternatively, two or more of the blocks of process 600may be performed in parallel.

FIG. 7 is a diagram illustrating an example process 700 performed, forexample, by a BS, in accordance with various aspects of the presentdisclosure. Example process 700 is an example where a BS (e.g., BS 110)performs operations associated with subband based resource allocationfor NR-U.

As shown in FIG. 7, in some aspects, process 700 may include configuringa subband configuration that includes one or more guard bands forplurality of subbands configured for a UE (block 710). For example, theBS (e.g., using transmit processor 220, receive processor 238,controller/processor 240, memory 242, and/or the like) may configure asubband configuration that includes one or more guard bands forplurality of subbands configured for a UE, as described above.

As further shown in FIG. 7, in some aspects, process 700 may includetransmitting, to the UE, an indication of the subband configuration(block 720). For example, the BS (e.g., using transmit processor 220,receive processor 238, controller/processor 240, memory 242, and/or thelike) may transmit, to the UE, an indication of the subbandconfiguration, as described above.

Process 700 may include additional aspects, such as any single aspect orany combination of aspects described below and/or in connection with oneor more other processes described elsewhere herein.

In a first aspect, the plurality of subbands are included in anunlicensed frequency band. In a second aspect, alone or in combinationwith the first aspect, process 700 further comprises receiving, from theUE, a PUSCH communication in one or more resource blocks that are basedat least in part on the plurality of subbands configured for the UE, thesubband configuration, and an interlace of resource blocks configuredfor the UE. In a third aspect, alone or in combination with one or moreof the first and second aspects, the one or more resource blocks areincluded in at least one of the plurality of subbands configured for theUE, or the one or more guard bands for the plurality of subbands. In afourth aspect, alone or in combination with one or more of the firstthrough third aspects, configuring the subband configuration comprisesconfiguring the subband configuration for a cell of the BS, andconfiguring the subband configuration for the cell comprises configuringthe subband configuration for all subbands and guard bands for afrequency band on which the BS operates in the cell.

In a fifth aspect, alone or in combination with one or more of the firstthrough fourth aspects, configuring the subband configuration for thecell comprises configuring the subband configuration for each bandwidthpart configured by the BS in the cell. In a sixth aspect, alone or incombination with one or more of the first through fifth aspects,transmitting the indication of the subband configuration comprisestransmitting the indication of the subband configuration in a cellconfiguration for the cell. In a seventh aspect, alone or in combinationwith one or more of the first through sixth aspects, configuring thesubband configuration comprises configuring the subband configurationfor a BWP of a plurality of BWPs associated with the BS. In an eighthaspect, alone or in combination with one or more of the first throughseventh aspects, transmitting the indication of the subbandconfiguration comprises transmitting the indication of the subbandconfiguration in a BWP configuration for the BWP.

In a ninth aspect, alone or in combination with one or more of the firstthrough eighth aspects, the subband configuration indicates respectivelengths and respective locations, in the frequency domain, for theplurality of subbands and the one or more guard bands, and process 700further comprises configuring another subband configuration, for anotherBWP of the plurality of BWPs associated with the BS, that indicates atleast one of a first length of a subband, of the plurality of subbands,that is different from a second length of the subband indicated in thesubband configuration, a first location of the subband that is differentfrom a second location of the subband indicated in the subbandconfiguration, a first length of a guard band, of the one or more guardbands, that is different from a second length of the guard bandindicated in the subband configuration, or a first location of the guardband that is different from a second location of the guard bandindicated in the subband configuration.

In a tenth aspect, alone or in combination with one or more of the firstthrough ninth aspects, configuring the subband configuration comprisesconfiguring the subband configuration for a particular combination ofthe plurality of subbands. In an eleventh aspect, alone or incombination with one or more of the first through tenth aspects,transmitting the indication of the subband configuration comprisestransmitting the indication of the subband configuration in at least oneof a MIB, a SIB, an RMSI communication, an OSI communication, a DCIcommunication, or an RRC communication.

In a twelfth aspect, alone or in combination with one or more of thefirst through eleventh aspects, the subband configuration is included ina plurality of subband configurations that is configured for the UE, andthe plurality of subband configurations comprise a combination of atleast one of a hard coded or system-wide subband configuration, acell-based subband configuration, a BWP-based subband configuration, ora subband combination-based subband configuration.

In a thirteenth aspect, alone or in combination with one or more if thefirst through twelfth aspects, configuring the subband configuration forthe cell comprises configuring the subband configuration for eachbandwidth part configured by the BS in a cell associated with the BS. Ina fourteenth aspect, alone or in combination with one or more if thefirst through thirteenth aspects, the subband configuration indicatesrespective starting resource blocks and respective ending resourceblocks for each of the one or more guard bands.

Although FIG. 7 shows example blocks of process 700, in some aspects,process 700 may include additional blocks, fewer blocks, differentblocks, or differently arranged blocks than those depicted in FIG. 7.Additionally, or alternatively, two or more of the blocks of process 700may be performed in parallel.

FIG. 8 is a conceptual data flow diagram 800 illustrating the data flowbetween different modules/means/components in an example apparatus 802.The apparatus 802 may be a UE (e.g., UE 120). In some aspects, theapparatus 802 includes a reception component 804, an identifyingcomponent 806, and a transmission component 808.

Reception component 804 may receive a communication 810 from a BS 814(e.g., BS 110). For example, reception component 804 may receivecommunication 810 that includes an indication of a resource allocationof one or more subbands allocated to apparatus 802, an indication of asubband configuration including one or more guard bands for the one ormore subbands, an indication of an interlace of resource blocksallocated to apparatus 802, and/or the like. In some aspects, receptioncomponent 804 may include an antenna (e.g., antenna 252), a receiveprocessor (e.g., receive processor 258), a controller/processor (e.g.,controller/processor 280), a transceiver, a receiver, and/or the like.

Identifying component 806 may identify one or more resource blocks inwhich to transmit a PUSCH communication 812 to BS 814. For example,identifying component 806 may identify a the one or more resource blocksbased at least in part on the subband configuration and the interlaceindicated in communication 810. In some aspects, identifying component806 may include a processor (e.g., controller/processor 280, receiveprocessor 258, and/or the like).

Transmission component 808 may transmit PUSCH communication 812 to BS814. For example, transmission component 808 may transmit PUSCHcommunication 812 to BS 814 in the one or more resource blocksidentified by identifying component 806. In some aspects, transmissioncomponent 808 may include an antenna (e.g., antenna 252), a transmitprocessor (e.g., transmit processor 264), a controller/processor (e.g.,controller/processor 280), a transceiver, a transmitter, and/or thelike.

Apparatus 802 may include additional components that perform each of theblocks of the algorithm in the aforementioned process 600 of FIG. 6and/or the like. Each block in the aforementioned process 600 of FIG. 6and/or the like may be performed by a component and the apparatus mayinclude one or more of those components. The components may be one ormore hardware components specifically configured to carry out the statedprocesses/algorithm, implemented by a processor configured to performthe stated processes/algorithm, stored within a computer-readable mediumfor implementation by a processor, or some combination thereof.

The number and arrangement of components shown in FIG. 8 are provided asan example. In practice, there may be additional components, fewercomponents, different components, or differently arranged componentsthan those shown in FIG. 8. Furthermore, two or more components shown inFIG. 8 may be implemented within a single component, or a singlecomponent shown in FIG. 8 may be implemented as multiple, distributedcomponents. Additionally, or alternatively, a set of components (e.g.,one or more components) shown in FIG. 8 may perform one or morefunctions described as being performed by another set of componentsshown in FIG. 8.

FIG. 9 is a conceptual data flow diagram 900 illustrating the data flowbetween different modules/means/components in an example apparatus 902.The apparatus 902 may be a base station (e.g., BS 110). In some aspects,apparatus 902 includes a reception component 904, a configuringcomponent 906, and a transmission component 908.

Configuring component 906 may configure a subband configuration thatincludes one or more guard bands for one or more subbands allocated to aUE 914 (e.g., UE 120). In some aspects, configuring component 906 mayinclude a processor (e.g., a transmit processor 220, a receive processor238, a controller/processor 240, and/or the like).

Transmission component 908 may transmit a communication 910 to UE 914.Communication 910 may include an indication of the subband configurationand an interlace of resource blocks allocated to UE 914. In someaspects, transmission component 908 may include an antenna (e.g.,antenna 234), a transmit processor (e.g., transmit processor 220), acontroller/processor (e.g., controller/processor 240), a transceiver, atransmitter, and/or the like.

Reception component 904 may receive a PUSCH communication 912 from UE914. For example, reception component 904 may receive PUSCHcommunication 912 in one or more resource blocks that are based at leastin part on the one or more subbands allocated to UE 914, the subbandconfiguration indicated in communication 910, and/or the interlace ofresource blocks allocated to UE 914. In some aspects, receptioncomponent 904 may include an antenna (e.g., antenna 234), a receiveprocessor (e.g., receive processor 238), a controller/processor (e.g.,controller/processor 240), a transceiver, a receiver, and/or the like.

Apparatus 902 may include additional components that perform each of theblocks of the algorithm in the aforementioned process 700 of FIG. 7and/or the like. Each block in the aforementioned process 700 of FIG. 7and/or the like may be performed by a component and the apparatus mayinclude one or more of those components. The components may be one ormore hardware components specifically configured to carry out the statedprocesses/algorithm, implemented by a processor configured to performthe stated processes/algorithm, stored within a computer-readable mediumfor implementation by a processor, or some combination thereof.

The number and arrangement of components shown in FIG. 9 are provided asan example. In practice, there may be additional components, fewercomponents, different components, or differently arranged componentsthan those shown in FIG. 9. Furthermore, two or more components shown inFIG. 9 may be implemented within a single component, or a singlecomponent shown in FIG. 9 may be implemented as multiple, distributedcomponents. Additionally, or alternatively, a set of components (e.g.,one or more components) shown in FIG. 9 may perform one or morefunctions described as being performed by another set of componentsshown in FIG. 9.

The foregoing disclosure provides illustration and description, but isnot intended to be exhaustive or to limit the aspects to the preciseform disclosed. Modifications and variations may be made in light of theabove disclosure or may be acquired from practice of the aspects.

As used herein, the term “component” is intended to be broadly construedas hardware, firmware, and/or a combination of hardware and software. Asused herein, a processor is implemented in hardware, firmware, and/or acombination of hardware and software.

As used herein, satisfying a threshold may, depending on the context,refer to a value being greater than the threshold, greater than or equalto the threshold, less than the threshold, less than or equal to thethreshold, equal to the threshold, not equal to the threshold, and/orthe like.

It will be apparent that systems and/or methods described herein may beimplemented in different forms of hardware, firmware, and/or acombination of hardware and software. The actual specialized controlhardware or software code used to implement these systems and/or methodsis not limiting of the aspects. Thus, the operation and behavior of thesystems and/or methods were described herein without reference tospecific software code—it being understood that software and hardwarecan be designed to implement the systems and/or methods based, at leastin part, on the description herein.

Even though particular combinations of features are recited in theclaims and/or disclosed in the specification, these combinations are notintended to limit the disclosure of various aspects. In fact, many ofthese features may be combined in ways not specifically recited in theclaims and/or disclosed in the specification. Although each dependentclaim listed below may directly depend on only one claim, the disclosureof various aspects includes each dependent claim in combination withevery other claim in the claim set. A phrase referring to “at least oneof” a list of items refers to any combination of those items, includingsingle members. As an example, “at least one of: a, b, or c” is intendedto cover a, b, c, a-b, a-c, b-c, and a-b-c, as well as any combinationwith multiples of the same element (e.g., a-a, a-a-a, a-a-b, a-a-c,a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or any other ordering ofa, b, and c).

No element, act, or instruction used herein should be construed ascritical or essential unless explicitly described as such. Also, as usedherein, the articles “a” and “an” are intended to include one or moreitems, and may be used interchangeably with “one or more.” Furthermore,as used herein, the terms “set” and “group” are intended to include oneor more items (e.g., related items, unrelated items, a combination ofrelated and unrelated items, and/or the like), and may be usedinterchangeably with “one or more.” Where only one item is intended, thephrase “only one” or similar language is used. Also, as used herein, theterms “has,” “have,” “having,” and/or the like are intended to beopen-ended terms. Further, the phrase “based on” is intended to mean“based, at least in part, on” unless explicitly stated otherwise.

What is claimed is:
 1. A method of wireless communication performed by auser equipment (UE), comprising: identifying a subband configuration fora plurality of subbands configured for the UE, the subband configurationincluding one or more guard bands for the plurality of subbands, and thesubband configuration being a hard coded subband configuration or asystem-wide subband configuration; identifying one or more resourceblocks, in which to transmit a physical uplink shared channel (PUSCH)communication, based at least in part on the subband configuration priorto being radio resource control (RRC) configured with a cell-basedsubband configuration; and transmitting, to a base station (BS), thePUSCH communication in the one or more resource blocks.
 2. The method ofclaim 1, wherein the subband configuration is for all BSs included in awireless network in which the UE and the BS are included.
 3. The methodof claim 1, wherein the subband configuration is to be applied to eachbandwidth part configured by the BS in a cell associated with the BS. 4.The method of claim 1, wherein the subband configuration is configuredfor a cell of the BS; wherein the subband configuration configures allsubbands and guard bands for a frequency band on which the BS operatesin the cell; and wherein identifying the one or more resource blockscomprises: identifying the one or more resource blocks based at least inpart on the UE being served by the cell.
 5. The method of claim 4,further comprising: receiving, from the BS, an indication of the subbandconfiguration, wherein the indication of the subband configuration isincluded in a cell configuration for the cell.
 6. The method of claim 1,wherein the plurality of subbands are included in an unlicensedfrequency band.
 7. The method of claim 1, wherein the one or moreresource blocks are included in at least one of: the plurality ofsubbands configured for the UE, or the one or more guard bands for theplurality of subbands.
 8. The method of claim 1, wherein the subbandconfiguration is configured for a bandwidth part (BWP) of a plurality ofBWPs associated with the BS; wherein the plurality of subbands and theone or more guard bands are included in the BWP; and wherein identifyingthe one or more resource blocks comprises: identifying the one or moreresource blocks based at least in part on the BWP being assigned to theUE.
 9. The method of claim 8, further comprising: receiving, from theBS, an indication of the subband configuration, wherein the indicationof the subband configuration is included in a BWP configuration for theBWP.
 10. The method of claim 1, wherein the subband configurationindicates respective starting resource blocks and respective endingresource blocks for each of the one or more guard bands.
 11. The methodof claim 1, further comprising: receiving an indication of the subbandconfiguration from the BS; and wherein identifying the one or moreresource blocks comprises: identifying the one or more resource blocksbased at least in part on receiving the indication of the subbandconfiguration.
 12. A method of wireless communication performed by abase station (BS), comprising: configuring a subband configuration thatincludes one or more guard bands for a plurality of subbands configuredfor a user equipment (UE), the subband configuration being a hard codedsubband configuration or a system-wide subband configuration used foridentifying one or more resource blocks, in which to transmit a physicaluplink shared channel (PUSCH) communication, prior to the UE being radioresource control (RRC) configured with a cell-based subbandconfiguration; and transmitting, to the UE, an indication of the subbandconfiguration.
 13. The method of claim 12, wherein configuring thesubband configuration comprises: configuring the subband configurationfor each bandwidth part configured by the BS in a cell associated withthe BS.
 14. The method of claim 12, wherein configuring the subbandconfiguration comprises: configuring the subband configuration for acell of the BS, wherein configuring the subband configuration for thecell comprises: configuring the subband configuration for all subbandsand guard bands for a frequency band on which the BS operates in thecell.
 15. The method of claim 14, wherein transmitting the indication ofthe subband configuration comprises: transmitting the indication of thesubband configuration in a cell configuration for the cell.
 16. Themethod of claim 12, wherein the one or more subbands are included in anunlicensed frequency band.
 17. The method of claim 12, furthercomprising: receiving, from the UE, the PUSCH communication in the oneor more resource blocks that are based at least in part on the pluralityof subbands configured for the UE and the subband configuration.
 18. Themethod of claim 17, wherein the one or more resource blocks are includedin at least one of: the plurality of subbands configured for the UE, orthe one or more guard bands for the plurality of subbands.
 19. Themethod of claim 12, wherein configuring the subband configurationcomprises: configuring the subband configuration for a bandwidth part(BWP) of a plurality of BWPs associated with the BS.
 20. The method ofclaim 19, wherein transmitting the indication of the subbandconfiguration comprises: transmitting the indication of the subbandconfiguration in a BWP configuration for the BWP.
 21. The method ofclaim 12, wherein the subband configuration indicates respectivestarting resource blocks and respective ending resource blocks for eachof the one or more guard bands.
 22. The method of claim 12, wherein thesubband configuration is included in a plurality of subbandconfigurations that is configured for the UE, wherein the plurality ofsubband configurations comprise a combination of at least one of: abandwidth part (BWP)-based subband configuration, or a subbandcombination-based subband configuration.
 23. A user equipment (UE) forwireless communication, comprising: a memory; and one or more processorsoperatively coupled to the memory, the memory and the one or moreprocessors configured to: identify a subband configuration for aplurality of subbands configured for the UE, the subband configurationincluding one or more guard bands for the plurality of subbands, and thesubband configuration being a hard coded subband configuration or asystem-wide subband configuration; identify one or more resource blocks,in which to transmit a physical uplink shared channel (PUSCH)communication, based at least in part on the subband configuration priorto being radio resource control (RRC) configured with a cell-basedsubband configuration; and transmit, to a base station (BS), the PUSCHcommunication in the one or more resource blocks.
 24. The UE of claim23, wherein the subband configuration is for all BSs included in awireless network in which the UE and the BS are included.
 25. The UE ofclaim 23, wherein the subband configuration is to be applied to eachbandwidth part configured by the BS in a cell associated with the BS.26. The UE of claim 23, wherein the subband configuration is configuredfor a cell of the BS; wherein the subband configuration configures allsubbands and guard bands for a frequency band on which the BS operatesin the cell; and wherein the one or more processors, when identifyingthe one or more resource blocks, are to: identify the one or moreresource blocks based at least in part on the UE being served by thecell.
 27. The UE of claim 26, wherein the one or more processors are to:receive, from the BS, an indication of the subband configuration,wherein the indication of the subband configuration is included in acell configuration for the cell.
 28. A base station (BS) for wirelesscommunication, comprising: a memory; and one or more processorsoperatively coupled to the memory, the memory and the one or moreprocessors configured to: configure a subband configuration thatincludes one or more guard bands for a plurality of subbands configuredfor a user equipment (UE), the subband configuration being a hard codedsubband configuration or a system-wide subband configuration used foridentifying one or more resource blocks, in which to transmit a physicaluplink shared channel (PUSCH) communication, prior to the UE being radioresource control (RRC) configured with a cell-based subbandconfiguration; and transmit, to the UE, an indication of: the subbandconfiguration, and an interlace of resource blocks configured for theUE.
 29. The BS of claim 28, wherein the one or more processors, whenconfiguring the subband configuration, are configured to: configure thesubband configuration for each bandwidth part configured by the BS in acell associated with the BS.
 30. The BS of claim 28, wherein the subbandconfiguration indicates respective starting resource blocks andrespective ending resource blocks for each of the one or more guardbands.